Do Jehovah's Witnesses believe only they will be saved after their organization came into existence?

Are there any statements in JW literature that indicate that they do not dogmatically believe that they are the only channel of God's truth and direction *today*, or that *today*, one does not have to be a JW to be saved? (By salvation I mean being reconciled to God, not merely being resuscitated to be given a chance to be taught by a JW in the millennium if they didn't receive that chance before they died.) My emphasis on the word *today* is because JWs believe prior to the existence of their organization, people could obviously be saved without becoming a JW, or will be given that opportunity in the millennium. However, what about after their organization came into existence? A JW might attempt to diplomatically respond that they are not to judge who will be saved (as I have seen from other responses from JWs on this forum). This is, of course, techically a correct response, yet begs the question, as JWs implicitly seem to believe a fellow JW will be saved if he stays loyal and obedient to their organization (which I assume to a JW this is equivalent to being obedient to God) throughout all eschatological trials such as Armageddon, whereas they believe others need to become JWs in order to be saved. However, my understanding of their beliefs might be inaccurate. I'm looking for official statements from JW literature.